I think peachparts.com/shopforum is the best I have found for Mercedes Benz. They have sub-forums for vintage Mercedes, Diesels, general Tech Help, etc. Also sub-forum for cars for sale and parts for sale.

You have to weed through the mess on all of them. 9th gen Civic forums was useful until the parents started buying their children Civic's and they wanted to put cold air intakes, headers, fart pipes and 18' rims on them. driveaccord.net is mostly useful, not many parents buying their children Accord's. I enjoyed bobistheoilguy.com after while its mostly garbage. I also enjoyed cleanmpg.com until the sites operator injected his tax the rich to death ideology in his automotive website, I no longer participate but do browse. I have found I become infuriated easily and I participate in this forum mostly. Its hard to find true logic on any forum most of its voodoo logic based on nonsense.

Be careful participating in brand/model specific car forums. You will learn about every problem that every owner has with every car like yours and begin to imagine all of those problems are beginning to infect your vehicle. Oh, and your mechanic will begin to hate you as you explain to him how properly address each imagined issue.

I have been catching that on weekend mornings. I have not been impressed with their advice.

FrugalInvestor wrote:Be careful participating in brand/model specific car forums. You will learn about every problem that every owner has with every car like yours and begin to imagine all of those problems are beginning to infect your vehicle. Oh, and your mechanic will begin to hate you as you explain to him how properly address each imagined issue.

I bring the TSB (Technical Service Bulletin) and show they they are going to do the repair for free. Two 2007 Civics I did this with the rear lower control arm and on one of them for when the block cracked.

I have been catching that on weekend mornings. I have not been impressed with their advice.

FrugalInvestor wrote:Be careful participating in brand/model specific car forums. You will learn about every problem that every owner has with every car like yours and begin to imagine all of those problems are beginning to infect your vehicle. Oh, and your mechanic will begin to hate you as you explain to him how properly address each imagined issue.

I bring the TSB (Technical Service Bulletin) and show they they are going to do the repair for free. Two 2007 Civics I did this with the rear lower control arm and on one of them for when the block cracked.

They won't perform a TSB unless you are experiencing the issue. Only noticed the lower control arm issue after premature tire replacement. Checked the other Civic and it has the same wear issue. One gets double the miles than they other. They actually didn't diagnose the cracked block, they did a pressure test and it held for 24 hours. I dump UV dye in the coolant and when it showed up in the oil I dropped it off and told them I didn't want it back until they figured it out. They called me a day and a half later to come pick it up after replacing the short block.